Textile bobbin



April 24, 934- E. G. CROOKS 1,956,191

TEXTILE BOBBIN Filed March 19, 1932 IN VEN TOR. EARL G. (FOO/f5 Patented Apr. 1934 g I 1 TEXTILE BOBBIN Earl G. Crooks, minim, N. Y., assignor to glngnnng Engineering Corporation, Elmira,

Application March 19, 1932, Serial No. 599,886

. 3 Claims. (Cl. 242-118) This invention relates to improvements in tex- In the drawing:

tile bobbins and more particularly to bobbins Fig. 1 is a perspective view of a bobbin made in employed in the silk and rayon industry. Texaccordance with my invention;

tile bobbins such as I am about to describe find Fig. 2 is a fragmentary side view of my im- 5 many uses in the above mentioned industry proved bobbin; and 0 among which is the setting of the twist in silk Fig. 3 is a transverse sectional view through and rayon threads under which conditions they my improved bobbin; are subjected to heat and moisture. In fact, Referring to the drawing in detail, my imafter the thread is wound on the bobbin, it is proved bobbin designated generally 10 comprises 10 introduced into a steam bath having a temperaa cylindrical body 11 having a relatively large 65 ture at or about the temperature of boiling water centrally located longitudinal bore 12 for the or from 200 to 220 Fahrenheit. Heretofore, reception of a bobbin support such as that diswooden bobbins have been employed in this closed in a copending application flled by me on service but due to the time required for their the 2nd day of October, 1931, Serial No. 566,391. 15 cooling and their tendency to swell under the While this bore receives the bobbin support when 70 heat and moisture, the industry has endeavored the bobbin is on the machine, it serves the double to satisfactorily make them from other materials. purpose of ventilating the bobbin so that a large Another objection to wood for such service is part of the surface of the bobbin contacts with its tendency to gather and absorb dirt with the the atmosphere and hence the heat stored in the as result that unless each bobbin is cleaned each thread and the bobbin from its immersions in time it is used, much spoilage of thread is exthe steam bath is rapidly dissipated. Actual tests perienced. Attempts have been made to use have shown that whereas a wooden bobbin wound metals for the manufacture of these bobbins but with thread takes twenty-four hours to cool, my these eflorts have proven unsuccessful for the improved glass bobbin of the same dimensions g5 reason that no metal has been found which will and wound with an equal quan y f hr d wi l withstand the repeated immersions in a steam cool in six hours. Hence it can be readily seen bath without corroding and spoiling a portion of that aside from their cleanliness, glass bobbins the thread which is wound thereon. with large bores such as I have described and An object of my invention is to avoid the spoilillustrated materially decrease the length of time age of thread which accompanies the use of texr quire 1 1' h Satisfactory Production 1 I tile bobbins of the ordinary type. 7 thread.

Another object is to increase the speed with Formed on opposite ends of the body 11 are which the twist may be set in silk and rayon annular flanges 13, the inner faces of which are threads. inclined as at 14 on an angle of from three to A further object is to avoid injury to the bobflve degrees from the perpendicular. This enbin due to the expansion of the thread relative ables me to wind the bobbins full of thread and thereto. I then subject it to a steam bath as previously Still another object is to prevent the thread described without endang ri t bobbin- Th a from shifting with relation to the bobbin and yet steam causes the thread to swell and I have ex- 40 provide a truly circular cylindrical surface upon perienced instances where the end flanges of a which the bobbin may run during the early stages wooden bobbin having flat inner faces have been of the winding operation. actually forced off the end of the cylindrical body The above and other objects may be accomwith the consequence that large quantities of the plished by employing my invention which emthread have been utterly ruined; By providing 45 bodies among its features a tubular glass body the smooth surface characteristic of glass and having at opposite ends tapered flanges between then tapering it as above described, I experience which the thread is confined, said body being no injury to the bobbin from the swelling of the iormed with longitudinally extending flat areas thread. to prevent the thread from rotating thereon. In order to'prevent the thread from shifting 50' Other features include the forming of the body longitudinally on the body 11, I have formed the adjacent opposite ends with means for preventlatter near opposite ends with annular grooves ing longitudinal shifting of the thread thereon 15. While in the present embodiment I have and the provision of a circular cylindrical area shown and described grooves, it'is obvious that upon which the bobbin may run when little or an annular ridge or ridges will serve the same 5531c thread is on it. princess and I consequently dc'not wish to have ien an interpretation placed hereon which will limit my invention to grooves except as defined in the appended claims. Extending longitudinally of the body at diametrically opposite points between the grooves 15 are flat areas 16 which serve to prevent rotation between the bobbins and the thread. It will be noted that these flat areas terminate at the groove 15. This is done so as to provide circular cylindrical faces 16 adjacent opposite ends of the body. These faces contact with the driving wheel at the start of the winding and serve to make the bobbin run true and hence facilitate the winding of the thread thereon. Obviously, where ridges are substituted for the grooves 15, it is important that their outer faces be formed truly circular and possess no flats nor other irregularities which might interfere with the running of the bobbin.

While in the foregoing, I have shown and described the preferred embodiment of .my invention, it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from the spirit of the invention as defined in the appended claims.

I claim: 7

l. A bobbin including a cylindrical body having a groove in spaced relation to each end, flat areas on the body extending throughout the distance between the grooves and circular cylindrical areas on the body between the grooves and the adjacent ends.

2. A one-piece bobbin including a cylindrical body having a longitudinal bore of relatively large diameter, flanges at opposite ends of the body, said body having annular grooves in spaced relation to the flanges, and flat areas on the exterior of the body extending between the grooves.

3. A one-piece bobbin including a cylindrical body having a longitudinal bore of relatively large diameter, flanges at opposite ends of the body, said body having annular grooves in spaced relation to the flanges, flat areas on the exterior of the body extending between the grooves and circular cylindrical areas on the body extending from the grooves to the adjacent flanges.

EARL G. CROOKS. 

